A kind of metal thin strip longitudinal shear tension adjusting anti-loosening device

Abstract

The application belongs to the field of metal strip winding, in particular to a metal thin strip longitudinal shearing tension adjusting anti-loosening device, which comprises a caisson and driving tables arranged on the caisson and close to both sides, the metal strip after longitudinal shearing passes through the two driving tables, the top of the caisson is provided with an opening, the inner side of the caisson is provided with an adjusting groove for adjusting the tension of the metal strip, the middle top of the caisson is provided with a wind power module, the wind power module comprises a fan for generating wind power and an air exhaust device for adjusting the direction of wind power; through such a setting, not only the influence of the tension after longitudinal shearing on the metal strip is self-adaptively adjusted by using the gravity of the metal strip itself, but also for the thin metal strip with low quality, the wind power acting from top to bottom is used to reduce the vibration amplitude of the metal strip and improve the interval between adjacent metal strips, so that the safe and stable transportation process of the metal strips without collision under high-speed transportation is ensured, the work efficiency is improved, and the operation safety is also ensured.

Description

Technical Field

[0001] This invention belongs to the field of metal strip winding, specifically a device for adjusting and preventing loosening of longitudinal shearing of thin metal strips. Background Technology

[0002] The metal strip slitting process involves uncoiling a wide metal coil, feeding it into a disc shear to longitudinally slit it into the required narrow strips, and then winding them into smaller coils using a tension control device. The core processes include precision slitting, burr control, and independent tension adjustment. This process is used for processing copper, aluminum, and steel strips, providing high-precision narrow strip raw materials for subsequent stamping, welding, and other processes.

[0003] Tension release before winding is to eliminate residual elastic stress inside the strip. If the stress is not released before winding, the layers of the strip will become tight inside and loose outside due to stress accumulation, or interlayer slippage and collapse may occur after unwinding. Moreover, uneven local tightness and looseness are very likely to occur during transportation vibration. Appropriate tension release can make the stress of the strip uniform, ensuring tight and consistent winding and stable finished product.

[0004] Traditional metal strip tension adjustment devices typically use methods such as magnetic attraction, hydraulic pressure, or motor adjustment to directly intervene in the metal strip itself and force it to maintain a synchronized tension. However, these methods often suffer from problems such as high equipment costs, difficulty in adjustment, and a high error rate due to reliance on calculations for control precision.

[0005] Therefore, the present invention provides a device for adjusting and preventing loosening of longitudinal shearing tension of thin metal strip. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a metal strip slitting tension adjustment and anti-loosening device, which includes a sink box and drive platforms set on both sides above the sink box. The slitting metal strip passes through the two drive platforms. The top of the sink box is open. The inner side of the sink box is provided with an adjustment groove for adjusting the tension of the metal strip. A wind power module is set at the top middle of the sink box. The wind power module includes a fan that generates wind power and an exhaust fan that adjusts the direction of wind power. The exhaust port of the exhaust fan faces downward.

[0008] This setup not only enables the metal strip to adaptively adjust the impact of the shearing tension on itself using its own weight, but also reduces the vibration amplitude of the thin metal strip by utilizing the downward-spreading wind force, which increases the spacing between adjacent metal strips. This ensures a safe and stable transportation process without collisions between metal strips at high speeds, improving work efficiency while also guaranteeing operational safety.

[0009] Preferably, the bottom exhaust port of the exhaust fan has three exhaust surfaces: a horizontal surface facing downwards and inclined surfaces on both sides of the horizontal surface. An adjustable air guide plate is installed in the exhaust port. Through the three exhaust surfaces at the bottom of the exhaust fan, plus the adjustable air guide plate, the air force generated by the fan can be uniformly applied to the metal strip in a downward diffusion manner. For metal strips of different widths, quantities, and masses, the air speed and exhaust angle can be adjusted to achieve a relatively stable transportation process for the metal strips.

[0010] Preferably, an exhaust fan is installed at the bottom edge of the caisson, and a connecting groove is opened inside the caisson to communicate with the exhaust fan. The connecting groove is connected to a fan, and an optical module with its observation end facing downward is fixed to the outside of the exhaust fan. In order to reduce the formation of turbulent flow in the regulating groove after the wind passes through the metal strip, the exhaust fan at the bottom is always in operation, thereby forming a stable airflow channel inside the regulating groove, reducing turbulence and airflow disturbance problems, and allowing the metal strip to maintain a relatively ideal expansion state. The wind extracted by the exhaust fan can be circulated back to the wind power module. When the caisson is installed underground, the bottom exhaust port can also be effectively connected to the ground to ensure the normal operation of the exhaust fan. The optical module constantly observes the state of the metal strip below, serving as a reference for abnormal warning and wind force adjustment.

[0011] Preferably, a support arm is fixedly connected to the outside of the exhaust fan, and the bottom of the support arm is fixedly connected to the edge of the top surface of the caisson. The connecting groove is connected to the wind power module through the support arm. A detachable filter is installed in the support arm. The wind power module is fixed above the caisson through the support arm. The air drawn from the exhaust fan can filter dust and other particles when passing through the filter, or the air can be discharged directly without using a filter.

[0012] Preferably, the inner side of the caisson near the bottom is provided with multiple movable auxiliary platforms. Each auxiliary platform includes an adsorption block capable of adsorbing metal strips. When the optical module observes that the tension of the metal strip is too low and it is excessively concave downwards, the effect of the wind will be weakened. At this time, the adsorption blocks below can be used in conjunction with the metal strips. Each adsorption block corresponds to a different metal strip. The adsorption block can adsorb the lowest vertical surface of the metal strip through magnetic attraction or negative pressure. Adsorption only increases the pulling force slightly. For example, in the magnetic attraction state, the adsorption block is only located below the metal strip and does not directly contact the metal strip. It only provides a slight pulling force to the metal strip and does not affect the movement of the metal strip. By moving the auxiliary platform, the adsorption block can be slightly deflected outwards. This ensures that the downwardly drooping metal strip still maintains an outwardly flared position, thereby further ensuring the safe transportation process of the metal strip.

[0013] Preferably, the auxiliary platform further includes a movable platform, the bottom of which is fixedly connected to a power base. An electric slide rail is installed on the inner bottom surface of the caisson. The power base is slidably engaged in the electric slide rail and fixedly connected to the movable end of the electric slide rail. The electric slide rail drives the power base and the movable platform to move horizontally. Based on the information from the optical module, the auxiliary platform is controlled to move to the accurate position to complete the adsorption and offset process.

[0014] Preferably, a servo motor is fixedly connected to the auxiliary platform, and a swing shaft is fixedly connected to the output end of the servo motor. An electric telescopic rod is fixedly connected to the outside of the swing shaft. The electric telescopic rod is connected to the adsorption block. When the moving platform moves into position, the servo motor adjusts the swing shaft to rotate a certain angle so that the adsorption force of the adsorption block can act positively on the outwardly deflected metal strip. The electric telescopic rod can adjust the height of the adsorption block to adapt to metal strips of different heights.

[0015] Preferably, the adsorption block is arranged in the shape of a cylindrical roller. A hub motor is installed inside the adsorption block to drive its rotation. A tension sensor is installed between the adsorption block and the electric telescopic rod. The tension sensor is used to obtain the magnitude of the adsorption force. Because the adsorption block attracts the metal strip, it also pulls on the adsorption block in the reaction, which is then detected by the tension sensor. The adsorption force can be adjusted based on the data to keep it within a suitable range. The cylindrical shape of the adsorption block, which can rotate under the drive of the hub motor, is mainly used to ensure that when the metal strip is excessively sag and about to touch the bottom, it will first contact the adsorption block. The adsorption block will then adhere to the metal strip, and under the action of rotation, it will ensure the smooth transport of the metal strip. When this situation occurs, the drive platform needs to be adjusted in time to allow the metal strip to return to its original drooping height.

[0016] Preferably, the drive platform includes a central platform, and two sets of drivers are fixedly connected to the top of the central platform. One set of drivers has two symmetrically arranged power shafts fixedly connected to its drive end, and a separation shaft is fixedly connected to the end of the other driver. Multiple discs for separating metal strips are fixedly connected to the outside of the separation shaft. The diameter of the discs is larger than the diameter of the separation shaft. The two power shafts clamp the metal strips, and friction ensures the stable transport of the metal strips. The separation shaft and the discs can directly separate adjacent metal strips at the physical level, so that the metal strips will not squeeze or collide with each other during horizontal transport.

[0017] Preferably, a limiting arm is provided above the separating shaft, and a limiter is rotatably connected to the limiting arm. Since the metal strip deflects slightly during the caisson stage, the limiter presses it against the disc to ensure that the metal strip remains stable and orderly during the transport process above. The limiter can be a long rod that can rotate on the limiting arm, with a metal ball at the bottom, which can limit the range of the metal strip from leaving the disc.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The metal strip slitting tension adjustment and anti-loosening device of the present invention, through the setting of the sink box and the wind power module, not only realizes the adaptive adjustment of the tension after slitting by utilizing the weight of the metal strip itself, but also, for thin metal strips with low quality, utilizes the top-down diffused wind force to reduce the vibration amplitude of the metal strip, increase the spacing between adjacent metal strips, ensure a safe and stable transportation process without collision between metal strips under high-speed transportation, improve work efficiency, and ensure operational safety.

[0020] 2. The metal strip slitting tension adjustment and anti-loosening device of the present invention, in order to reduce the turbulent flow formed in the adjustment groove after the wind passes through the metal strip, the bottom exhaust fan always keeps working, thereby forming a stable airflow channel inside the adjustment groove, reducing turbulence and airflow disturbance problems, and allowing the metal strip to maintain a relatively ideal expansion state; the wind extracted by the exhaust fan can be circulated to the wind power module, and in the case where the caisson is installed underground, the bottom exhaust port can also be effectively connected to the ground to ensure the normal operation of the exhaust fan; the optical module constantly observes the status of the metal strip below, and is used as a reference for abnormal warning and wind force adjustment. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a cross-sectional view of the caisson of the present invention;

[0024] Figure 3 This is a perspective view of the caisson and metal strip of the present invention;

[0025] Figure 4 This is a diagram showing the expansion state of a portion of the metal strip in this invention;

[0026] Figure 5 This is a perspective view of the auxiliary platform of the present invention;

[0027] Figure 6 This is a perspective view of the wind power module of the present invention;

[0028] Figure 7 This is a perspective view of the drive stage of the present invention;

[0029] Figure 8 This is a perspective view of the exhaust fan of the present invention;

[0030] In the diagram: 1. Sunken box; 2. Drive platform; 3. Wind power module; 4. Metal belt; 5. Adjustment groove; 6. Exhaust fan; 7. Auxiliary platform; 8. Electric slide rail; 9. Connecting groove; 10. Moving platform; 11. Power base; 12. Servo motor; 13. Swing shaft; 14. Electric telescopic rod; 15. Tension sensor; 16. Adsorption block; 17. Exhaust fan; 18. Fan; 19. Optical module; 20. Support arm; 21. Filter; 22. Center platform; 23. Driver; 24. Limit arm; 25. Power shaft; 26. Limiter; 27. Separation shaft. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 8 As shown in the embodiment of the present invention, a metal strip slitting tension adjustment and anti-loosening device includes a sink box 1 and drive platforms 2 arranged on both sides above the sink box 1. The slitting metal strip 4 passes through the two drive platforms 2. The top of the sink box 1 is open. The inner side of the sink box 1 is provided with an adjustment groove 5 for adjusting the tension of the metal strip 4. A wind power module 3 is provided at the top middle of the sink box 1. The wind power module 3 includes a fan 18 that generates wind power and an exhaust fan 17 that adjusts the direction of wind power. The exhaust port of the exhaust fan 17 faces downward.

[0033] The slit metal strip 4 is passed through two drive platforms 2. The metal strip 4 located in the middle sags under the influence of gravity, partially situated in the adjustment groove 5 of the caisson 1. The drive platforms 2 at the front and rear synchronously drive the metal strip 4 for transport. However, due to the naturally uneven radial tension distribution within the metal strip 4, after the winding force is released, the metal will readjust its posture, resulting in localized slack. The strip with high tension will appear tight, while the strip with low tension will be loose. To ensure that multiple metal strips 4 can be wound synchronously during the final winding, the metal strip 4 between the two caissons 1 has an additional concave section. At this point, the concave arc of the metal strip 4 with high tension will be smaller than that of the metal strip 4 with low tension. This section serves as the tension release area, enabling adaptive tension adjustment. The released metal strip 4 is then transported outwards by the drive platform 2 and finally wound up completely by the winding equipment. When adjusting the thicker metal strip 4, its greater mass and gravity result in stronger stability. During adaptive tension adjustment and transport, only slight vibrations occur, and the probability of collisions between adjacent metal strips 4 is low. Even if small collisions occur, they quickly stabilize and do not affect the transport process. However, the thinner metal strip 4, with its lower mass, experiences excess force during transport and tension release, which is converted into greater vibration, making it prone to metal... The collisions between the metal strips 4 affect the transportation and winding process of the metal strips 4. By installing a wind module 3 above the caisson 1, the wind module 3 generates wind power through the fan 18, and the wind power is discharged downward at a uniform speed through the exhaust fan 17 as required. The discharged wind power needs to diffuse downward and act evenly on the surface of the metal strips 4. The lighter metal strips 4 are more likely to change with the wind power, so that the originally evenly spaced metal strips 4 are slightly diffused outward. In this state, the gap between the metal strips 4 that were originally too close together is increased, reducing the risk of mutual collision. At the same time, under the uniform wind power, even if the metal strips 4 vibrate, it will be blocked and absorbed by the wind, just like... Objects moving in water generally have their momentum absorbed by the water flow; this reduces the vibration amplitude of metal belt 4, further reducing the problem of collisions between metal belts 4. At the same time, the wind force can also clean dust and other stains from the surface of metal belt 4, improving the quality of the finished product. Through this setting, not only can the influence of longitudinal shearing tension on itself be adaptively adjusted by the weight of metal belt 4, but also for thin metal belts 4 with lower quality, the vibration amplitude of metal belt 4 is reduced by the wind force that diffuses from top to bottom, increasing the spacing between adjacent metal belts 4. This ensures a safe and stable transportation process without collisions between metal belts 4 under high-speed transportation, improving work efficiency while ensuring operational safety.

[0034] The exhaust port at the bottom of the exhaust fan 17 has three exhaust surfaces: a horizontal surface facing downwards and inclined surfaces located on both sides of the horizontal surface. A rotatable and adjustable air guide plate is installed in the exhaust port.

[0035] During operation, the air force generated by the fan 18 can be uniformly applied to the metal strip 4 by the three exhaust surfaces at the bottom of the exhaust fan 17 and the adjustable air guide plate. For metal strips 4 of different widths, quantities and masses, the air speed and air outlet angle can be adjusted to achieve a relatively stable transportation process.

[0036] A blower 6 is installed at the bottom edge of the caisson 1. A connecting groove 9 is opened inside the caisson 1 to communicate with the blower 6. The connecting groove 9 is connected to the fan 18. An optical module 19 with the observation end facing down is fixed to the outside of the exhaust fan 17.

[0037] During operation, to prevent the wind from forming turbulent flow in the regulating groove 5 after passing through the metal strip 4, the bottom exhaust fan 6 always operates, thus forming a stable airflow channel inside the regulating groove 5, reducing turbulence and airflow disturbances, and allowing the metal strip 4 to maintain a relatively ideal expansion state. The wind extracted by the exhaust fan 6 can be circulated back to the wind power module 3. When the caisson 1 is installed underground, it can also effectively connect the bottom exhaust port to the ground, ensuring the normal operation of the exhaust fan 6. The optical module 19 constantly observes the status of the metal strip 4 below, serving as a reference for abnormal warnings and wind force adjustment.

[0038] A support arm 20 is fixedly connected to the outside of the exhaust fan 17. The bottom of the support arm 20 is fixedly connected to the edge of the top surface of the caisson 1. The connecting groove 9 is connected to the wind power module 3 through the support arm 20. A detachable filter 21 is installed in the support arm 20.

[0039] During operation, the wind module 3 is fixed above the caisson 1 by the support arm 20. The wind drawn from the exhaust fan 6 can filter dust and other particles when passing through the filter 21, or the wind can be discharged directly without using the filter 21.

[0040] The inner side of the caisson 1 near the bottom is provided with a number of movable auxiliary platforms 7, and the auxiliary platform 7 includes an adsorption block 16 that can adsorb the metal strip 4.

[0041] During operation, when the optical module 19 observes that the tension of the metal strip 4 is too low and it is excessively concave downwards, the effect of the wind will be weakened. At this time, it can cooperate with the suction blocks 16 below. Each suction block 16 corresponds to a different metal strip 4. The suction block 16 can attract the bottom vertical surface of the metal strip 4 by magnetic attraction or negative pressure. The attraction only increases the pulling force slightly. For example, in the magnetic attraction state, the suction block 16 is only located below the metal strip 4 and does not directly contact the metal strip 4. It only provides a slight pulling force to the metal strip 4 and does not affect the movement of the metal strip 4. By moving the auxiliary platform 7, the suction block 16 is slightly deflected outwards. This ensures that the metal strip 4, which is falling downwards, still maintains an outwardly deflected state, thereby further ensuring the safe transportation process of the metal strip 4.

[0042] The auxiliary platform 7 also includes a movable platform 10. A power base 11 is fixedly connected to the bottom of the movable platform 10. An electric slide rail 8 is installed on the inner bottom surface of the caisson 1. The power base 11 is slidably engaged in the electric slide rail 8 and fixedly connected to the movable end of the electric slide rail 8.

[0043] During operation, the electric slide rail 8 drives the power base 11 and the moving stage 10 to move horizontally. Based on the information from the optical module 19, the auxiliary stage 7 is controlled to move to the accurate position to complete the adsorption and offset process.

[0044] A servo motor 12 is fixedly connected to the auxiliary platform 7. A swing shaft 13 is fixedly connected to the output end of the servo motor 12. An electric telescopic rod 14 is fixedly connected to the outside of the swing shaft 13. The electric telescopic rod 14 is connected to the adsorption block 16.

[0045] During operation, once the moving platform 10 is in position, the servo motor 12 adjusts the swing shaft 13 to rotate at a certain angle, allowing the suction force of the adsorption block 16 to act positively on the outwardly deflected metal strip 4. The electric telescopic rod 14 can adjust the height of the adsorption block 16 to accommodate metal strips 4 of different heights.

[0046] The adsorption block 16 is arranged in the shape of a cylindrical roller. A hub motor for driving the adsorption block 16 to rotate is installed inside the adsorption block 16. A tension sensor 15 is installed between the adsorption block 16 and the electric telescopic rod 14.

[0047] During operation, the tension sensor 15 is used to obtain the magnitude of the adsorption force. Because the adsorption block 16 adsorbs the metal strip 4, it will also pull the adsorption block 16 in the reaction, which is then obtained by the tension sensor 15. The adsorption force can be adjusted by the data to keep it within a suitable range. The adsorption block 16 is a roller and can rotate under the drive of the hub motor. It is mainly used to make the metal strip 4 touch the adsorption block 16 first when it is about to touch the bottom due to excessive sinking. The adsorption block 16 will adhere to the metal strip 4 and ensure the smooth transportation of the metal strip 4 under the action of rotation. When this situation occurs, the drive table 2 needs to be adjusted in time to make the metal strip 4 return to its original drooping height.

[0048] The drive platform 2 includes a central platform 22. Two sets of drivers 23 are fixedly connected to the top of the central platform 22. One set of drivers 23 has two symmetrically arranged power shafts 25 fixedly connected to its drive end. The other set of drivers 23 has a separation shaft 27 fixedly connected to its end. Multiple circular pieces of separation metal strips 4 are fixedly connected to the outside of the separation shaft 27. The diameter of the circular pieces is larger than the diameter of the separation shaft 27.

[0049] During operation, the two power shafts 25 clamp the metal belt 4, and the friction ensures the stable transport of the metal belt 4. The separation shaft 27 and the disc can directly separate adjacent metal belts 4 from the physical level, so that the metal belts 4 will not squeeze or collide with each other during horizontal transport.

[0050] A limiting arm 24 is provided above the separating shaft 27, and a limiter 26 is rotatably connected to the limiting arm 24;

[0051] During operation, the metal strip 4 deflects slightly in the first stage of the caisson. It is pressed against the top of the disc by the limiter 26 to ensure that the metal strip 4 remains stable and orderly during the transport process above. The limiter 26 can be a long rod that can rotate on the limiter arm 24, with a metal ball at the bottom, which can limit the range of the metal strip 4 from leaving the disc.

[0052] During operation, the slit metal strip 4 is passed through two drive platforms 2. The metal strip 4 located in the middle sags under gravity, partially situated in the adjustment groove 5 of the caisson 1. The drive platforms 2 at the front and rear synchronously drive the metal strip 4 for transport. However, due to the naturally uneven radial tension distribution within the metal strip 4, after the winding force is released, the metal will "readjust its posture," resulting in localized slack. The strip with high tension will appear tight, while the strip with low tension will be loose. To ensure that multiple metal strips 4 can be wound synchronously during final winding, the metal strip 4 between the two caissons 1 has an additional concave section. At this point, the concave arc of the metal strip 4 with high tension will be smaller than that of the metal strip 4 with low tension. Belt 4 serves as the tension release area, enabling adaptive tension adjustment. The released metal belt 4 is then transported outwards by the drive platform 2 and finally wound up completely by the winding equipment. When adjusting thicker metal belts 4, their greater mass and gravity result in stronger stability. During adaptive tension adjustment and transport, only slight vibrations occur, and the probability of collisions between adjacent metal belts 4 is low. Even if small collisions occur, they quickly stabilize and do not affect the transport process. However, thinner metal belts 4, with their lower mass, experience greater vibration due to excess force generated during transport and tension release, making them more prone to vibration. The collisions between the metal strips 4 affect the transportation and winding process of the metal strips 4. By installing a wind module 3 above the caisson 1, the wind module 3 generates wind power through the fan 18, and the wind power is discharged downwards at a uniform speed through the exhaust fan 17 as required. The discharged wind power needs to diffuse downwards and act evenly on the surface of the metal strips 4. The lighter metal strips 4 are more likely to change with the wind power, so that the originally evenly spaced metal strips 4 are slightly diffused outwards. In this state, the gap between the metal strips 4 that were originally too close together is increased, reducing the risk of mutual collision. At the same time, under the uniform wind power, even if the metal strips 4 vibrate, it will be blocked and absorbed by the wind. Just as objects moving in water have their momentum absorbed by the water flow, this reduces the vibration amplitude of metal belt 4, further minimizing collisions between metal belts 4. Simultaneously, the wind force cleans dust and other contaminants from the surface of metal belt 4, improving finished product quality. This design not only allows for adaptive adjustment of the shearing tension on metal belt 4 using its own weight, but also, for thinner metal belts 4 with lower mass, utilizes the downward-spreading wind force to reduce vibration amplitude and increase the spacing between adjacent metal belts 4. This ensures a safe and stable transportation process without collisions between metal belts 4 at high speeds, improving work efficiency while guaranteeing operational safety.

[0053] With the three exhaust surfaces at the bottom of the exhaust fan 17 and the adjustable air guide plate, the wind force generated by the fan 18 can be uniformly applied to the metal strip 4 in a downward diffusion manner. For metal strips 4 of different widths, quantities, and masses, the wind speed and exhaust angle can be adjusted to achieve a relatively stable transportation process for the metal strip 4.

[0054] To prevent turbulent flow from forming within the regulating trough 5 after the wind passes through the metal strip 4, the bottom exhaust fan 6 continuously operates, creating a stable airflow channel within the regulating trough 5. This reduces turbulence and airflow disturbances, allowing the metal strip 4 to maintain a relatively ideal expansion state. The wind extracted by the exhaust fan 6 can be circulated back into the wind power module 3. In cases where the caisson 1 is installed underground, it can also effectively connect the bottom exhaust port to the ground, ensuring the normal operation of the exhaust fan 6. The optical module 19 constantly monitors the status of the metal strip 4 below, serving as a reference for abnormal warnings and wind force adjustment.

[0055] The wind module 3 is fixed above the caisson 1 by the support arm 20. The wind drawn from the exhaust fan 6 can filter dust and other particles when passing through the filter 21, or the wind can be discharged directly without using the filter 21.

[0056] When the optical module 19 observes that the tension of the metal strip 4 is too low and it is concave too much downward, the effect of the wind will be weakened. At this time, it can be used in conjunction with the suction blocks 16 below. Each suction block 16 corresponds to a different metal strip 4. The suction block 16 can attract the bottom vertical surface of the metal strip 4 by magnetic attraction or negative pressure. The attraction only increases the pulling force slightly. For example, in the magnetic attraction state, the suction block 16 is only located below the metal strip 4 and does not directly contact the metal strip 4. It only provides a slight pulling force to the metal strip 4 and does not affect the movement of the metal strip 4. By moving the auxiliary platform 7, the suction block 16 is slightly deflected outward. This ensures that the metal strip 4, which is falling downward, still maintains an outward deflected state, thereby further ensuring the safe transportation process of the metal strip 4.

[0057] The electric slide rail 8 drives the power seat 11 and the moving stage 10 to move horizontally. Based on the information from the optical module 19, the auxiliary stage 7 is controlled to move to the accurate position to complete the adsorption and offset process.

[0058] Once the moving platform 10 is in position, the servo motor 12 adjusts the swing shaft 13 to rotate at a certain angle, so that the suction force of the adsorption block 16 can act positively on the outwardly deflected metal strip 4. The electric telescopic rod 14 can adjust the height of the adsorption block 16 to adapt to metal strips 4 of different heights.

[0059] The tension sensor 15 is used to obtain the magnitude of the adsorption force. Because the adsorption block 16 adsorbs the metal strip 4, it will also pull the adsorption block 16 in the reaction, which is then obtained by the tension sensor 15. The adsorption force can be adjusted by the data to keep the adsorption force within a suitable range. The adsorption block 16 is a roller and can rotate under the drive of the hub motor. It is mainly used to make the metal strip 4 touch the adsorption block 16 first when it is about to touch the bottom due to excessive sinking. The adsorption block 16 will stick to the metal strip 4 and ensure the smooth transportation of the metal strip 4 under the action of rotation. When this happens, the drive table 2 needs to be adjusted in time to make the metal strip 4 return to its original drooping height.

[0060] Two drive shafts 25 clamp the metal belt 4, ensuring stable transport of the metal belt 4 through friction. The separation shaft 27 and the disc can directly separate adjacent metal belts 4 from the physical level, preventing the metal belts 4 from squeezing and colliding with each other during horizontal transport.

[0061] Since the metal strip 4 deflects slightly during the caisson stage 1, it is pressed against the top of the disc by the limiter 26 to ensure that the metal strip 4 remains stable and orderly during the transport above. The limiter 26 can be a long rod that can rotate on the limiter arm 24, with a metal ball at the bottom, which can limit the range of the metal strip 4 from leaving the disc.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment and anti-loosening device for longitudinal shearing of thin metal strips, characterized in that: The device includes a caisson and drive platforms located on both sides above the caisson. The longitudinally sheared metal strip passes through the two drive platforms. The top of the caisson is open. An adjustment groove for adjusting the tension of the metal strip is provided on the inner side of the caisson. A wind power module is provided at the top center of the caisson. The wind power module includes a fan that generates wind and an exhaust fan that adjusts the direction of the wind. The exhaust port of the exhaust fan faces downward.

2. The metal strip slitting tension adjustment and anti-loosening device according to claim 1, characterized in that: The exhaust port at the bottom of the exhaust fan has three exhaust surfaces: a horizontal surface facing downwards and inclined surfaces located on both sides of the horizontal surface. A rotatable and adjustable air guide plate is installed in the exhaust port.

3. The metal strip slitting tension adjustment and anti-loosening device according to claim 2, characterized in that: A ventilator is installed at the bottom edge of the caisson. A connecting groove is opened inside the caisson to communicate with the ventilator. The connecting groove is connected to a fan. An optical module with the observation end facing downward is fixed to the outside of the ventilator.

4. The metal strip slitting tension adjustment and anti-loosening device according to claim 3, characterized in that: A support arm is fixedly connected to the outside of the exhaust fan. The bottom of the support arm is fixedly connected to the edge of the top surface of the caisson. The connecting groove is connected to the wind power module through the support arm. A removable filter is installed in the support arm.

5. The anti-loosening device for longitudinal shearing of thin metal strips according to claim 4, characterized in that: The inner side of the caisson near the bottom is provided with multiple movable auxiliary platforms, each of which includes an adsorption block capable of adsorbing metal strips.

6. The anti-loosening device for longitudinal shearing of thin metal strips according to claim 5, characterized in that: The auxiliary platform also includes a movable platform, the bottom of which is fixedly connected to a power base. An electric slide rail is installed on the inner bottom surface of the caisson. The power base is slidably engaged in the electric slide rail and fixedly connected to the movable end of the electric slide rail.

7. The anti-loosening device for longitudinal shearing of thin metal strips according to claim 6, characterized in that: A servo motor is fixedly connected to the auxiliary platform. A swing shaft is fixedly connected to the output end of the servo motor. An electric telescopic rod is fixedly connected to the outside of the swing shaft. The electric telescopic rod is connected to the adsorption block.

8. The metal strip slitting tension adjustment and anti-loosening device according to claim 7, characterized in that: The adsorption block is arranged in the shape of a cylindrical roller, and a hub motor for driving the adsorption block to rotate is installed inside the adsorption block. A tension sensor is installed between the adsorption block and the electric telescopic rod.

9. The anti-loosening device for longitudinal shearing of thin metal strips according to claim 8, characterized in that: The drive platform includes a central platform, and two sets of drivers are fixedly connected to the top of the central platform. One set of drivers has two symmetrically arranged power shafts fixedly connected to its drive end, and a separation shaft is fixedly connected to the end of the other driver. Multiple circular discs of separation metal strips are fixedly connected to the outside of the separation shaft, and the diameter of the circular discs is larger than the diameter of the separation shaft.

10. The anti-loosening device for longitudinal shearing of thin metal strips according to claim 9, characterized in that: A limit arm is provided above the separation shaft, and a limiter is rotatably connected to the limit arm.

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